#ifndef _UNISTD_H
#define _UNISTD_H    1

/*
 * This file intended to serve as a drop-in replacement for unistd.h on Windows
 * Please add functionality as neeeded.
 */

#include <stdlib.h>
#include <stdio.h>
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable: 4820)
#endif
#include <io.h>
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#include <getopt.h>  // getopt at: https://gist.github.com/ashelly/7776712
#include <process.h> // for getpid() and the exec..() family
#include <direct.h>  // for _getcwd() and _chdir()

#define srandom srand
#define random rand

/* Values for the second argument to access. These may be OR'd together. */
#define R_OK    4       // Test for read permission
#define W_OK    2       // Test for write permission
// #define X_OK    1    // execute permission - unsupported in windows
#define F_OK    0       // Test for existence

#define access _access
#define dup2 _dup2
#define execve _execve
#define ftruncate _chsize
#define unlink _unlink
#define fileno _fileno
#define getcwd _getcwd
#define chdir _chdir
#define isatty _isatty
#define lseek _lseek
/* read, write, and close are NOT being defined here,
 * because while there are file handle specific versions for Windows, they probably don't work for sockets.
 * You need to look at your app and consider whether to call e.g. closesocket(). */

#define ssize_t int

#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
/* should be in some equivalent to <sys/types.h> */
typedef __int8            int8_t;
typedef __int16           int16_t;
typedef __int32           int32_t;
typedef __int64           int64_t;
typedef unsigned __int8   uint8_t;
typedef unsigned __int16  uint16_t;
typedef unsigned __int32  uint32_t;
typedef unsigned __int64  uint64_t;

#ifndef STLINK_HAVE_UNISTD_H
int usleep(unsigned int waitTime);
#endif

#endif /* unistd.h */
